Goodwill and Other Intangibles - Goodwill (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Goodwill [Line Items]
Impairment	$ 13.9	[1]
Changes in the carrying amount of goodwill
Net goodwill balance, January 1	1,181.4
Ending balance, December 31	1,197.0
Goodwill impairment test, weighted average cost of capital discount rate for future cash flow	10.00%
Sensitivity analysis Increase in discount rate	1.00%
Sensitivity analysis decrease in operating margin assumption	1.00%
Engine [Member]
Changes in the carrying amount of goodwill
Gross goodwill balance, January 1	1,324.1		1,334.7
Accumulated impairment losses, January 1			(501.8)		(501.8)
Net goodwill balance, January 1	822.3		832.9
Divestitures	(4.6)		(16.9)	[2]
Translation adjustment and other	12.4		6.3
Ending balance, December 31	830.1		822.3
Drivetrain [Member]
Changes in the carrying amount of goodwill
Gross goodwill balance, January 1	359.3		353.5
Accumulated impairment losses, January 1			(0.2)		(0.2)
Net goodwill balance, January 1	359.1		353.3
Translation adjustment and other	7.8		5.8
Ending balance, December 31	$ 366.9		$ 359.1

[1] *Impairment relates to Drivetrain customer relationships and Engine unamortized trade names. The impairment charges are recorded in restructuring expense in Other expense (income).

[2] Goodwill divested relates to the Company's 2012 sale of the spark plug business.